SF3A2

This gene encodes subunit 2 of the splicing factor 3a protein complex. The splicing factor 3a heterotrimer includes subunits 1, 2 and 3 and is necessary for the in vitro conversion of 15S U2 snRNP into an active 17S particle that performs pre-mRNA splicing. Subunit 2 interacts with subunit 1 through its amino-terminus while the single zinc finger domain of subunit 2 plays a role in its binding to the 15S U2 snRNP. Subunit 2 may also function independently of its RNA splicing function as a microtubule-binding protein. [provided by RefSeq]

Full Name

splicing factor 3a, subunit 2, 66kDa

Function

Involved in pre-mRNA splicing as a component of the splicing factor SF3A complex that contributes to the assembly of the 17S U2 snRNP, and the subsequent assembly of the pre-spliceosome 'E' complex and the pre-catalytic spliceosome 'A' complex (PubMed:10882114, PubMed:11533230).
Involved in pre-mRNA splicing as a component of pre-catalytic spliceosome 'B' complexes, including the Bact complex (PubMed:29361316, PubMed:29360106, PubMed:30315277).
Interacts directly with the duplex formed by U2 snRNA and the intron (PubMed:29360106).

Biological Process

Biological Process mRNA 3'-splice site recognitionManual Assertion Based On ExperimentTAS:HGNC-UCL
Biological Process mRNA processingManual Assertion Based On ExperimentIMP:HGNC-UCL
Biological Process mRNA splicing, via spliceosomeManual Assertion Based On ExperimentIDA:UniProtKB
Biological Process positive regulation of neuron projection developmentIEA:Ensembl
Biological Process spliceosomal complex assemblyManual Assertion Based On ExperimentIBA:GO_Central
Biological Process U2-type prespliceosome assemblyManual Assertion Based On ExperimentIDA:UniProtKB

Cellular Location

Nucleus